Summary

Sturges v. Crowninshield — Opinion of the Court

Congress has the power of securing, for limited times, to authors and inventors, the exclusive right to their respective writings and discoveries. To the mere importers of foreign inventions, or foreign improvements, congress can grant no patent; are not the states at liberty, in this omitted case, in this different matter, to promote the progress of science and useful arts, by pursuing their own measures, and dispensing their own rewards? Even supposing they cannot legislate upon the peculiar and admitted objects of congressional legislation, yet they may on others.
Source: Wikisource

Sturges v. Crowninshield — Opinion of the Court

The performance of the contract shall be exact; imprisonment is the remedy for enforcing it: but where there is a confessed and adjudicated inability, the society withholds the power to protract indefinitely and miserably, what can never be an effectual remedy, but only a vindictive punishment. The moral obligation of a contract may, perhaps, remain for ever, but misfortune and extreme indigence put an end to the legal obligation, as war does to a treaty; as revolution does to a pre-existing government; as death does to personal duties.
Source: Wikisource

Sturges v. Crowninshield — Opinion of the Court

The first impression of any man, learned or unlearned, is, that a law which discharges a contract, without an entire performance of it, impairs its obligation. A law which declares, that a bond given for the payment of $1000 may be cancelled, and the obligor freed from all liability to suit thereon, upon the payment of $500, certainly materially affects the obligation of the contract, and impairs it.
Source: Wikisource

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